21509488

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1$

素因数の和:135

約数の個数: 160

約数和(自身を含む): 59996160

約数和(自身を除く): 38486672

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 17, 22, 26, 28, 34, 44, 52, 56, 68, 77, 79, 88, 91, 104, 112, 119, 136, 143, 154, 158, 176, 182, 187, 208, 221, 238, 272, 286, 308, 316, 364, 374, 442, 476, 553, 572, 616, 632, 728, 748, 869, 884, 952, 1001, 1027, 1106, 1144, 1232, 1264, 1309, 1343, 1456, 1496, 1547, 1738, 1768, 1904, 2002, 2054, 2212, 2288, 2431, 2618, 2686, 2992, 3094, 3476, 3536, 4004, 4108, 4424, 4862, 5236, 5372, 6083, 6188, 6952, 7189, 8008, 8216, 8848, 9401, 9724, 10472, 10744, 11297, 12166, 12376, 13904, 14378, 14773, 16016, 16432, 17017, 17459, 18802, 19448, 20944, 21488, 22594, 24332, 24752, 28756, 29546, 34034, 34918, 37604, 38896, 45188, 48664, 57512, 59092, 68068, 69836, 75208, 79079, 90376, 97328, 103411, 115024, 118184, 122213, 136136, 139672, 150416, 158158, 180752, 192049, 206822, 236368, 244426, 272272, 279344, 316316, 384098, 413644, 488852, 632632, 768196, 827288, 977704, 1265264, 1344343, 1536392, 1654576, 1955408, 2688686, 3072784, 5377372, 10754744, 21509488]

約数ペア:

[(1, 21509488), (2, 10754744), (4, 5377372), (7, 3072784), (8, 2688686), (11, 1955408), (13, 1654576), (14, 1536392), (16, 1344343), (17, 1265264), (22, 977704), (26, 827288), (28, 768196), (34, 632632), (44, 488852), (52, 413644), (56, 384098), (68, 316316), (77, 279344), (79, 272272), (88, 244426), (91, 236368), (104, 206822), (112, 192049), (119, 180752), (136, 158158), (143, 150416), (154, 139672), (158, 136136), (176, 122213), (182, 118184), (187, 115024), (208, 103411), (221, 97328), (238, 90376), (272, 79079), (286, 75208), (308, 69836), (316, 68068), (364, 59092), (374, 57512), (442, 48664), (476, 45188), (553, 38896), (572, 37604), (616, 34918), (632, 34034), (728, 29546), (748, 28756), (869, 24752), (884, 24332), (952, 22594), (1001, 21488), (1027, 20944), (1106, 19448), (1144, 18802), (1232, 17459), (1264, 17017), (1309, 16432), (1343, 16016), (1456, 14773), (1496, 14378), (1547, 13904), (1738, 12376), (1768, 12166), (1904, 11297), (2002, 10744), (2054, 10472), (2212, 9724), (2288, 9401), (2431, 8848), (2618, 8216), (2686, 8008), (2992, 7189), (3094, 6952), (3476, 6188), (3536, 6083), (4004, 5372), (4108, 5236), (4424, 4862)]